Remove unused trigonometric code.

src/x64/lithium-x64.h

Index: src/x64/lithium-x64.h
diff --git a/src/x64/lithium-x64.h b/src/x64/lithium-x64.h
index 44bd992f7ddda91439910f61215674cb6713517c..e644c2d25acfe9456a68e4039abd4ac358568369 100644
--- a/src/x64/lithium-x64.h
+++ b/src/x64/lithium-x64.h
@@ -131,7 +131,6 @@ class LCodeGen;
   V(LoadNamedGeneric)                           \
   V(MapEnumLength)                              \
   V(MathAbs)                                    \
-  V(MathCos)                                    \
   V(MathExp)                                    \
   V(MathFloor)                                  \
   V(MathFloorOfDiv)                             \
@@ -139,9 +138,7 @@ class LCodeGen;
   V(MathMinMax)                                 \
   V(MathPowHalf)                                \
   V(MathRound)                                  \
-  V(MathSin)                                    \
   V(MathSqrt)                                   \
-  V(MathTan)                                    \
   V(ModI)                                       \
   V(MulI)                                       \
   V(NumberTagD)                                 \
@@ -770,42 +767,6 @@ class LMathLog V8_FINAL : public LTemplateInstruction<1, 1, 0> {
 };
 
 
-class LMathSin V8_FINAL : public LTemplateInstruction<1, 1, 0> {
- public:
-  explicit LMathSin(LOperand* value) {
-    inputs_[0] = value;
-  }
-
-  LOperand* value() { return inputs_[0]; }
-
-  DECLARE_CONCRETE_INSTRUCTION(MathSin, "math-sin")
-};
-
-
-class LMathCos V8_FINAL : public LTemplateInstruction<1, 1, 0> {
- public:
-  explicit LMathCos(LOperand* value) {
-    inputs_[0] = value;
-  }
-
-  LOperand* value() { return inputs_[0]; }
-
-  DECLARE_CONCRETE_INSTRUCTION(MathCos, "math-cos")
-};
-
-
-class LMathTan V8_FINAL : public LTemplateInstruction<1, 1, 0> {
- public:
-  explicit LMathTan(LOperand* value) {
-    inputs_[0] = value;
-  }
-
-  LOperand* value() { return inputs_[0]; }
-
-  DECLARE_CONCRETE_INSTRUCTION(MathTan, "math-tan")
-};
-
-
 class LMathExp V8_FINAL : public LTemplateInstruction<1, 1, 2> {
  public:
   LMathExp(LOperand* value, LOperand* temp1, LOperand* temp2) {
@@ -2705,9 +2666,6 @@ class LChunkBuilder V8_FINAL BASE_EMBEDDED {
   LInstruction* DoMathRound(HUnaryMathOperation* instr);
   LInstruction* DoMathAbs(HUnaryMathOperation* instr);
   LInstruction* DoMathLog(HUnaryMathOperation* instr);
-  LInstruction* DoMathSin(HUnaryMathOperation* instr);
-  LInstruction* DoMathCos(HUnaryMathOperation* instr);
-  LInstruction* DoMathTan(HUnaryMathOperation* instr);
   LInstruction* DoMathExp(HUnaryMathOperation* instr);
   LInstruction* DoMathSqrt(HUnaryMathOperation* instr);
   LInstruction* DoMathPowHalf(HUnaryMathOperation* instr);